* feat(terraform): close key/team schema gaps, fix team read envelope, add import support
* feat(terraform): add fallback resource/data source and key/team block resources
* feat(terraform): add access group and unified access group resources and data sources
* feat(terraform): add guardrail and prompt resources and data sources
* feat(terraform): add agent and search tool resources and data sources
* feat(terraform): add user and budget resources and data sources
* feat(terraform): add tag and project resources and data sources
* docs(terraform): changelog and readme for parity additions
* feat(terraform): add data sources for keys, teams, models, organizations, and mcp servers
* fix(terraform): key update 400 on empty budget_duration, key info envelope, config-supplied key
* fix(terraform): hash raw keys to SHA-256 tokens in key lookup URLs and block resource IDs
